<template>
    <div id="app">
        <router-view class="router-view" />
        <vue-picture-viewer :imgData="previewImgs" :select-index="previewIndex" v-if="showPreviewImg" @close-viewer="showPreviewImg=false"></vue-picture-viewer>
    </div>
</template>

<script>
/** 常用图片预览创建组件 */
import VuePictureViewer from '@/components/vuePictureViewer/index'
import { mapGetters } from 'vuex'

export default {
    name: 'App',
    components: {
        VuePictureViewer
    },
    data() {
        return {
            showPreviewImg: false,
            previewIndex: 0,
            previewImgs: []
        }
    },
    computed: {
        ...mapGetters(['activeIndex'])
    },
    watch: {
        $route(to, from) {
            this.showPreviewImg = false //切换页面隐藏图片预览
            if (to.meta.menuIndex) {
                this.$store.commit('SET_ACTIVEINDEX', to.meta.menuIndex)
            } else {
                this.$store.commit('SET_ACTIVEINDEX', to.path)
            }
        }
    },
    mounted() {
        this.addBus()
    },
    methods: {
        addBus() {
            var self = this
            this.$bus.on('preview-image-bus', function (data) {
                self.previewIndex = data.index
                self.previewImgs = data.data
                self.showPreviewImg = true
            })
        }
    }
}
</script>

<style>
#app {
    width: 100%;
    position: relative;
    height: 100%;
}
</style>
